diff --git a/web/documentserver-example/nodejs/config/default.json b/web/documentserver-example/nodejs/config/default.json
index 4de1a152..13a6d6fa 100644
--- a/web/documentserver-example/nodejs/config/default.json
+++ b/web/documentserver-example/nodejs/config/default.json
@@ -1,4 +1,4 @@
-{
+{
   "log": {
     "appenders": [
       {
diff --git a/web/documentserver-example/nodejs/config/development-mac.json b/web/documentserver-example/nodejs/config/development-mac.json
index 269d6323..db3d122b 100644
--- a/web/documentserver-example/nodejs/config/development-mac.json
+++ b/web/documentserver-example/nodejs/config/development-mac.json
@@ -1,4 +1,4 @@
-{
+{
   "server": {
     "port": 3000,
     "siteUrl": "http://127.0.0.1:8080/"
diff --git a/web/documentserver-example/nodejs/config/development-windows.json b/web/documentserver-example/nodejs/config/development-windows.json
index b0c7562a..84d1574c 100644
--- a/web/documentserver-example/nodejs/config/development-windows.json
+++ b/web/documentserver-example/nodejs/config/development-windows.json
@@ -1,4 +1,4 @@
-{
+{
   "server": {
     "port": 80,
     "siteUrl": "http://127.0.0.1:8001/"
diff --git a/web/documentserver-example/nodejs/config/production-linux.json b/web/documentserver-example/nodejs/config/production-linux.json
index fe632c90..1dd5c8bc 100644
--- a/web/documentserver-example/nodejs/config/production-linux.json
+++ b/web/documentserver-example/nodejs/config/production-linux.json
@@ -1,4 +1,4 @@
-{
+{
   "server": {
     "siteUrl": "/",
     "maxFileSize": 104857600